Art Deco Style 5 Carat Genuine Blue Topaz Cabochon Cut 925 Sterling Silver Ring. The Top Of The Ring Measures 3/8 Inches In Length. This Mesmerizing Antique Style Ring Is Set With One 10 mm Cabochon Cut Genuine Sky Blue Topaz Stone. Inspired by The Original Designs Of The Victorian To The Art Deco Period, 1836-1935. Item Is Stamped 925. Our Silver Is Genuine 925 Sterling Silver.